126474-07-5

Basic information

• Product Name: 7-Phenyl-7,8-dihydro-5H-pyrano[4,3-b]pyridine
• CAS NO: 126474-07-5
• Molecular Weight: 211.263
• Mol File: 126474-07-5.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 7-Phenyl-7,8-dihydro-5H-pyrano[4,3-b]pyridine(CAS DataBase Reference)
• NIST Chemistry Reference: 7-Phenyl-7,8-dihydro-5H-pyrano[4,3-b]pyridine(126474-07-5)
• EPA Substance Registry System: 7-Phenyl-7,8-dihydro-5H-pyrano[4,3-b]pyridine(126474-07-5)

Safety Data

• Hazardous Substances Data: 126474-07-5(Hazardous Substances Data)

Upstream product

• 36914-69-9 2-<2-Hydroxy-2-phenylethyl>pyrazine 
• 126473-98-1 β-(2-propynyloxy)-β-phenylethylpyrazine 

Relevant articles and documents

INTRAMOLECULAR INVERSE ELECTRON DEMAND DIELS-ALDER REACTIONS OF PYRAZINES

Thermally induced intramolecular Diels-Alder cyclisations of (alkynyloxyalkyl)pyrazines to dihydropyranopyridines have been studied in the solvent undecane.The introduction of a phenyl group in the α-position of the 3-butynyloxymethyl side chain leads to a 3-4 fold increase of the reaction rate, while the influence of a γ-phenyl group on the rate is negligible.The (3-butynyloxymethyl)pyrazine reacts about 7 times slower than the (3-propynyloxyethyl)pyrazine; the presence of a trimethylsilyl group at the terminus of the alkyne decreases in general the rate of the intramolecular cyclisation.The mechanisms are discussed.